{"id":169041,"date":"2025-04-03T16:34:00","date_gmt":"2025-04-03T22:34:00","guid":{"rendered":"https:\/\/tecscience.tec.mx\/en\/?p=169041"},"modified":"2025-04-07T16:45:33","modified_gmt":"2025-04-07T22:45:33","slug":"biosensor-for-healthy-aging","status":"publish","type":"post","link":"https:\/\/tecscience.tec.mx\/en\/biotechnology\/biosensor-for-healthy-aging\/","title":{"rendered":"Tec and UNAM Researchers Develop Biosensor to Help Diagnose Healthy Aging"},"content":{"rendered":"\n<p><strong>Chronic inflammation<\/strong> is a process that often occurs in the human body as people age. As it progresses, <strong>it\u2019s linked to a higher risk of cardiovascular disease, diabetes, and other chronic conditions<\/strong>. Its development can be tracked using a biosensor that detects certain body fluids, which could also<strong> reveal a person\u2019s biological age<\/strong>\u2014that is, how worn out their body really is\u2014and help assess whether they are aging in a healthy way.<\/p>\n\n\n\n<p>Researchers from the <a href=\"https:\/\/www.unam.mx\/\">National Autonomous University of Mexico<\/a> (UNAM) and Tecnol\u00f3gico de Monterrey are collaborating on a project to develop a device that combines<strong> synthetic biology<\/strong> and microfluidic technology to detect molecules associated with chronic inflammation. The goal is to help people determine whether this condition is developing in their bodies.<\/p>\n\n\n\n<p>The initiative, titled <em><a href=\"https:\/\/consorciounamtec.mx\/dispositivos-basados-switches-moleculares-diagnostico-envejecimiento-saludable\/\" target=\"_blank\" rel=\"noreferrer noopener\">Devices Based on Molecular Switches for Diagnosing Healthy Aging<\/a><\/em>, is backed by the UNAM-TEC Consortium. Leading the project are <a href=\"https:\/\/orcid.org\/0000-0002-9282-1476\" target=\"_blank\" rel=\"noreferrer noopener\">Tatiana Fiordelisio<\/a>, head of the National Laboratory of Biomimetic Solutions for Diagnosis and Therapy (LaNSBioDyT) at UNAM\u2019s Faculty of Sciences, and <a href=\"https:\/\/research.tec.mx\/vivo-tec\/display\/PID_178342\" target=\"_blank\" rel=\"noreferrer noopener\">Jos\u00e9 Mario Gonz\u00e1lez<\/a>, research professor in the Department of Bioengineering at the <a href=\"\/en\/tag\/school-of-engineering-and-sciences\/\" target=\"_blank\" rel=\"noreferrer noopener\">School of Engineering and Sciences<\/a> (EIC) at Tec\u2019s Mexico City campus.<\/p>\n\n\n\n<p>The device could offer people an affordable way to perform these tests without having to go to a lab, significantly cutting down on costs and eliminating the need for cold-chain logistics to handle samples. It would also serve as an <strong>early detection tool for inflammatory signals, helping prevent frailty, multiple chronic conditions, and other <a href=\"\/en\/health\/obesity-and-aging\/\" target=\"_blank\" rel=\"noreferrer noopener\">age<\/a>-related diseases<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How Do Molecular Switches Work?<\/strong><\/h2>\n\n\n\n<p>Gonz\u00e1lez explains that <strong>molecular switches act like biological on-off buttons<\/strong> that trigger or deactivate functions when they recognize a target molecule\u2014for instance, <strong>lighting up a fluorescent signal upon detection<\/strong>. In the future, they could also be programmed to carry out corrective actions inside the body, such as<strong> producing antibodies or releasing therapeutic molecules<\/strong>, depending on what they detect. The goal is to make them modular, so they can link together and interact with other components, much like elements in a logic circuit.<\/p>\n\n\n\n<p>With just a single drop of blood, this biosensor delivers easy-to-read colorimetric results, enabling a practical and targeted evaluation of inflammation levels right at home.<\/p>\n\n\n\n<p>\u201cMolecules can behave like electronic devices\u2014that\u2019s the core idea behind synthetic biology. The goal is to <strong>give molecules new capabilities<\/strong>, so they not only detect health issues, but can also trigger a controlled response,\u201d says Gonz\u00e1lez.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Synthetic Biology to Detect Chronic Inflammation<\/strong><\/h2>\n\n\n\n<p>In this project, the researchers selected <strong>C-reactive protein<\/strong> (CRP) as their biomarker. This protein is produced by the liver in response to infection or injury and can be detected in the blood\u2014even at low levels\u2014when inflammation is present, even if there are no obvious symptoms. As people age, <strong>CRP levels may rise, leading to a phenomenon known as <a href=\"https:\/\/www.nature.com\/articles\/s41574-018-0059-4\" target=\"_blank\" rel=\"noreferrer noopener\">inflammaging<\/a><\/strong>\u2014a blend of the words inflammation and aging\u2014which is associated with a range of health issues.<\/p>\n\n\n\n<p>Typically, diagnostic and detection models use antibodies to recognize <a href=\"\/en\/science-communication\/microfluidics-and-proteins\/\" target=\"_blank\" rel=\"noreferrer noopener\">proteins<\/a> like CRP linked to inflammation. However, antibodies are highly specific molecules that are expensive and resource-intensive to produce. They can only be developed in living animals and require lengthy validation processes.<\/p>\n\n\n\n<p>As an alternative, the researchers opted to use <strong>aptamers<\/strong>\u2014<strong>synthetic molecules made from nucleic acids<\/strong> (DNA or RNA strands) that are designed and produced in the lab. Like antibodies, <strong>they act as \u201cmolecular hooks\u201d that recognize and bind to inflammatory proteins<\/strong>. But aptamers are cheaper and faster to manufacture, more stable and easier to store, and they don\u2019t require the use of animals.<\/p>\n\n\n\n<p>\u201cOne of the biggest challenges is being able to detect molecules that can tell us whether we\u2019re healthy or if something in our body is beginning to change. With this device, we\u2019re combining two technologies\u2014molecular switches and aptamers\u2014to <strong>make it easier and more precise to detect those molecules <\/strong>that are currently hard to identify,\u201d says Fiordelisio.<\/p>\n\n\n\n<p>Gonz\u00e1lez points out that <strong>this molecular system stemmed from a project developed by students in Tec\u2019s Biotechnology program <\/strong>who took part in the international iGEM synthetic biology competition. He adds that the students also proposed the theoretical framework for applying this technology to detect healthy aging indicators, since it could be useful for identifying molecules linked to other diseases as well.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Designing a Preventive Device Using Molecular Technology<\/strong><\/h2>\n\n\n\n<p>The project is currently in the <a href=\"\/en\/business-innovation\/technology-transfer\/\" target=\"_blank\" rel=\"noreferrer noopener\">prototyping phase<\/a>, which marks its early development stage.<strong> The researchers have already succeeded in detecting the protein and triggering a signal from the switch<\/strong>. They\u2019re now working on building the first functional instrument that integrates this molecular technology.<\/p>\n\n\n\n<p>Fiordelisio explains that <strong>they\u2019re developing a portable device<\/strong>\u2014roughly the size of 10 by 15 centimeters\u2014similar to a chip or cassette. Inside, <strong>it houses a microfluidic system <\/strong>that allows them to manipulate liquids through tiny channels, such as samples of blood or saliva. These channels include reaction zones where aptamers are placed to detect the biomarker. If the biomarker is present, the molecular switches are activated and generate a visible signal.<\/p>\n\n\n\n<p>Once the prototype is complete and tested with human samples, <strong>the next step would be to validate its safety and effectiveness<\/strong>. Eventually, they aim to transfer the technology to a business partner who can help bring the device to market.<\/p>\n\n\n\n<p>The long-term goal, says Fiordelisio, is to create an accessible, fast, and low-cost <strong>Point-of-Care<\/strong> option for the public\u2014essentially, a preventive health test for monitoring purposes. \u201c<strong>Our vision is for it to work like a pregnancy test<\/strong>. You could go to the pharmacy, place a drop of blood, and know in 15 minutes whether you should see a doctor.\u201d<\/p>\n\n\n\n<p>Gonz\u00e1lez, who is part of the Aging research group at EIC, notes that <strong>this project addresses a gap in tools that help people track the progression of their <a href=\"\/en\/health\/healthy-aging-synergy-forum\/\" target=\"_blank\" rel=\"noreferrer noopener\">biological aging<\/a><\/strong> and support informed decisions about their health. Still, while the device will help detect molecules linked to inflammation and aging, he emphasizes that a formal diagnosis should always come from a healthcare professional.<\/p>\n\n\n\n<p>\u201cWe\u2019d love to see this technology go beyond the lab and reach clinics and everyday people\u2014and that it\u2019s produced here in Mexico,\u201d he adds. \u201cOur aim is to <strong>empower people to monitor their aging<\/strong> and make choices that help them live longer and better lives.\u201d<\/p>\n\n\n\n<p><strong><em>Did you find this story interesting? Would you like to publish it? Contact our content editor to learn more at&nbsp;<a href=\"mailto:marianaleonm@tec.mx\">marianaleonm@tec.mx<\/a>&nbsp;<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is one of the projects under the UNAM-TEC Research, Technology Transfer, and Entrepreneurship Consortium.<\/p>\n","protected":false},"author":47,"featured_media":169044,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[93],"tags":[470],"class_list":["post-169041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biotechnology","tag-unam-tec-consortium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.0 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Researchers Develop Biosensor for a Healthy Aging | TecScience<\/title>\n<meta name=\"description\" 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